9905388620

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1901}}^1\times {\mathrm{4271}}^1$

素因数の和:6242

約数の個数: 48

約数和(自身を含む): 21158395776

約数和(自身を除く): 11253007156

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 1901, 3802, 4271, 7604, 8542, 9505, 17084, 19010, 21355, 38020, 42710, 85420, 115961, 231922, 260531, 463844, 521062, 579805, 1042124, 1159610, 1302655, 2319220, 2605310, 5210620, 8119171, 16238342, 32476684, 40595855, 81191710, 162383420, 495269431, 990538862, 1981077724, 2476347155, 4952694310, 9905388620]

約数ペア:

[(1, 9905388620), (2, 4952694310), (4, 2476347155), (5, 1981077724), (10, 990538862), (20, 495269431), (61, 162383420), (122, 81191710), (244, 40595855), (305, 32476684), (610, 16238342), (1220, 8119171), (1901, 5210620), (3802, 2605310), (4271, 2319220), (7604, 1302655), (8542, 1159610), (9505, 1042124), (17084, 579805), (19010, 521062), (21355, 463844), (38020, 260531), (42710, 231922), (85420, 115961)]